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Xylene Isomerization in a ZSM-5/SS Membrane Reactor

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Abstract

A membrane reactor containing different types of ZSM-5/porous SS membranes was used to perform the xylene isomerization reaction. The parent Na-ZSM-5 layer was synthesized by secondary growth on top of porous stainless steel tubes. The xylene isomerization reaction was carried out at different temperatures in the membrane reactor and in a fixed-bed reactor of identical geometry for comparison. Two different kinds of membranes were prepared by ion exchange: a Pt/H-ZSM-5 catalytic membrane and two Ba-ZSM-5 composites with different Ba2+ concentration. The p-xylene production using 100% exchanged Ba-membrane was about 28% higher than the fixed-bed reactor at 370 °C, when m-xylene was fed.

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Acknowledgements

The authors wish to acknowledge the financial support received from UNL, CONICET and ANPCyT. Thanks are given to Elsa Grimaldi for the English language editing. A.M.T. thanks the YPF Foundation for the support received for her doctoral scholarship.

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Authors and Affiliations

  1. Instituto de Investigaciones en Catálisis y Petroquímica (FIQ, UNL-CONICET), Santiago del Estero 2829, 3000, Santa Fe, Argentina

    Ana M. Tarditi & E. A. Lombardo

  2. Repsol-YPF, Baradero S/N, 1925, Ensenada, Buenos Aires, Argentina

    G. I. Horowitz

Authors
  1. Ana M. Tarditi
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  2. G. I. Horowitz
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  3. E. A. Lombardo
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Corresponding author

Correspondence to E. A. Lombardo.

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Tarditi, A.M., Horowitz, G.I. & Lombardo, E.A. Xylene Isomerization in a ZSM-5/SS Membrane Reactor. Catal Lett 123, 7–15 (2008). https://doi.org/10.1007/s10562-008-9442-4

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  • DOI: https://doi.org/10.1007/s10562-008-9442-4

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